With this sourcebook of reproducible puzzles and practice problems, you can successfully reinforce first-year algebra skills. Now revised to meet NCTM standards, this book contains more teaching tips, new calculator activities, and additional "outdoor math" activities. Secret codes, magic squares, cross-number puzzles, and other self-correcting devices provide stimulating and fun practice. Chapters cover basic equations, equations and inequalities with real numbers, polynomials, factoring, using fractions, graphing and systems of linear equations, and rational and irrational numbers. Worked-out examples, drawings, and cartoons clarify key ideas. Answers are included.